A hippo can hold their breath up to 5 min and can even sleep underwater thanks to a reflex that allows them to come up for a breath and sink back down without waking up. Similar to human 1-year-olds, Fiona doesn't make it easy for her Mom to enjoy a nap.

Doris Stoddart Fulton I truly love to see these pictures of Fiona and Bibi. Having watched her from her first days, it's amazing to see her today. Staffers did one great job with our gal. Hugs to all.

Libby McNeil Wow Fiona is really getting big. How much does she weigh now? Bibi is probably saying any one have a plug (pacifer) big enough for this girl. LOL

Debra Usrey Hey, Mom, don't you know that when I'm awake; YOU need to be awake, too!!!! Typical baby, wants ALL the attention!! LOL!

Janet Crowley A typical toddler. For heaven sake Bibi, don't pick up the phone, that's when Fiona will demand attention or get into mischief. Trust me.

Rita Chapman I first read the headline as “Happy National Nagging Day”, which would also be an appropriate caption for the photo.

Lynette Cooper Mom can I date that cute hippo Timothy from San Antonio, please! I said Nooooo. Your dad made me promise no dating until you are at least 5.

Lauren Hunter-Smith Hippo tricks 101: you open your mouth like this and one of the keepers drops a whole watermelon or a pumpkin in there and you crush it in one big chop. People love it. You'll be trending all day.

Karen Vukcevic Sing me my favorite song MOM

The seaweed is always greener
In somebody else's lake
You dream about going up there
But that is a big mistake
Just look at the world around you
Right here on the ocean floor
Such wonderful things surround you
What more is you lookin' for?

Carmen Hoffmann I know it's almost Easter, Mom, but it does look like a small cavity on your lower canine on the left. You may need to cut back on the Cadbury eggs.